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In sulfur photosynthetic bacteria what is the molecule that donates hydrogen for photosynthesis?
In sulfur photosynthetic bacteria the substance that donates hydrogen is hydrogen sulfide (H2S) and not water. Thus there is no liberation of molecular oxygen but there is production of molecular sulfur (S2). (Oxygen and sulfur have similar number of valence electrons.)
Alternative polyadenylation sites Exact pre-mRNAs hold more than single group of signal sequences for 3' end polyadenylation and cleavage. In some cases, the area of t
As the functions of individual genes become known, the power of this new biology can be used to change organisms in predictable and desirable pathways. Organisms which have been c
Green leaves make food for plants Heat some alcohol in a jar over boiling water unless it boils. Break various green leaves from a geranium or other plant which has been in the
Modified or Semi-synthetic Gums These are natural polymers, which are chemically modified to give a new product with improved functional properties. These also fall into severa
Q. Why is the occurrence of eyelids in amphibians in comparison to their absence in fishes an adaptation to terrestrial life? Eyelids associated to lacrimal glands protect and
The citric acid cycle, also called as the tricarboxylic acid (TCA) cycle or Krebs cycle (after its discoverer in the year of 1937), is used to oxidize the pyruvate making during th
Q. Symptoms of Non-Ketotic Hyperosmolar Diabetic Coma? Following are the signs and symptoms of NKHDC: 1) Polyuria 2) Polydipsia 3) Weight loss 4) Mental Confusion
what are some examples of eperimenting palants?
Define Role of Fitness in Field of Human Endeavour? Fitness plays a vital role in any field of human endeavour and influences the efficiency of a person. For this reason, fitne
Explain the Ecosystems? The ecosystem is yet another level, or ecological unit, studied by ecologists. An ecosystem encompasses all of the organisms (all the populations-the en
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